I've attached new patches against Darcs head to my proposal at
http://hackage.haskell.org/trac/ghc/ticket/2717
The patches implement Set.nubOrd and IntSet.nubInt, and modify the documentation
for List.nub.
Please take a look at these patches and give any comments on this "final"
version of code or documentation. If I don't hear otherwise shortly, I'll go
ahead and request that these patches be incorporated for 2.6.11.
Thanks.
Bart Massey
bart <at> cs.pdx.edu